Add 35/90 and 7/84
35/90 + 7/84 is 17/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
35/90 = 35 × 14/90 × 14 = 490/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
7/84 = 7 × 15/84 × 15 = 105/1260 - Add the two like fractions:
490/1260 + 105/1260 = 490 + 105/1260 = 595/1260 - 595/1260 simplified gives 17/36
- So, 35/90 + 7/84 = 17/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+7/84 35/90+14/84 35/90+21/84 35/90+35/84 35/90+49/84